4/2 and 4/3 proportional directional valves direct operated, with electrical position feedback, without/with integrated electronics (OBE)

Transcription

1 4/2 nd 4/3 proptionl directionl vlves direct operted, with electricl position feedck, without/with integrted electronics (OE) Types 4WRE nd 4WREE Nominl sizes 6 nd 0 Component series 2X Mximum operting pressure 35 r Mximum flow: 80 l/min (NS6) 80 l/min (NS0) Overview of contents Contents Pge Fetures Ordering detils 2 Symols 3 Function, section 4 Technicl dt 5, 6 Control electronics 6 Electricl connections, plug-in connects 7, 8 Integrted electronics (OE) f type 4WREE 8, 9 Chrcteristic curves Unit dimensions F infmtion regrding the ville spre prts see: H588 Type 4WRE 6-2X/G24K4/V with plug-in connects nd ssocited control electronics (seprte der) Fetures RE 2906/0.05 Replces: H5732 /20 Type 4WREE 0-2X/G24K3/V with integrted electronics (OE) Direct operted proptionl directionl vlve with electricl posisiton feedck nd integrted electronics (OE) f type 4WREE Closed loop control of the direction nd size of flow Opertion is y proptionl solenoids with centrl thred nd removle coil F suplte mounting: Pting pttern to ISO 440 Supltes to ctlogue sheets RE (NS6) RE (NS0), seprte der, see pges Spring centred control spool Control electronics 4WREE - integrted electronics (OE) with voltge input current input ( resp. F) 4WRE (4/3 version), seprte der: - digitl nlogue mplifier in Eurocrd fmt - nlogue module mplifier 4WRE (4/2 version), seprte der: - nlogue module mplifier

2 2/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Ordering detils Without integrted electronics (OE) With integrted electronics (OE) 4WRE 2X G24 V * = No code 0 P T 0 P = E Nominl size 6 = 6 Nominl size 0 = 0 Spool symols With symols End W: P : q V mx T: q V /2 P : q V /2 T: q V mx Note: F spools W nd W there is, in the neutrl position, connection etween to T nd to T with pprox. 3 % of the relevnt nominl cross-section. T = E E = V = W W = E = W G24 = V = Further detils in cler text Sel mteril FKM sels, suitle f minerl oil (HL, HLP) to DIN 5524 Electronic interfces F F 4WREE = Commnd vlue input ± 0 VDC F = Commnd vlue input 4 to 20 m No code = F 4WRE Electricl connections F 4WRE: K4 = Without plug-in connect, with component plug to DIN EN Plug-in connect (solenoid, position trnsducer). seprte der, see pge 7 F 4WREE: K3 = Without plug-in connect, with component plug to DIN EN Plug-in connect seprte der, see pge 8 Power supply voltge 24 VDC 2X = Component series 20 to 29 (20 to 29: unchnged instlltion nd connection dimensions) Nominl flow t vlve pressure differentil p = 0 r NS6 08 = 8 l/min 6 = 6 l/min 32 = 32 l/min NS0 25 = 25 l/min 50 = 50 l/min 75 = 75 l/min

3 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 3/20 Symols Proptionl directionl vlves without integrted electronics Type 4WRE G 0 P T Type 4WRE G 0 P T Proptionl directionl vlves with integrted electronics Type 4WREE G 0 P T Type 4WREE G 0 P T

4 4/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Function, section The 4/2 nd 4/3 proptionl directionl vlves re direct operted components of suplte mounting design. They re operted y proptionl solenoids with centrl thred nd removle coil. The solenoids re optionlly controlled y either externl electronics (type 4WRE) y the integrted electronics (type 4WREE). Design: The vlve siclly consists of: Housing () with mounting fce Control spool (2) with compression springs (3 nd 4) nd spring pltes (X nd X2) Solenoids (5 nd 6) nd pole tues (P nd P2) with centrl thred Position trnsducer (7) Optionl integrted control electronics (8) The mechnicl zero point djustment (9) is ccessile vi the Pg3.5 nd the electricl zero point is ccessile vi the Pg7 (0) (type 4WREE) Type 4WRE 6-2X/ Type 4WREE 6-2X/ T (P) P P2 6 T (P) P 3 X 2 4 P2 6 Vlve with 2 switching positions: (type 4WRE ) Note f type 4WRE 6-2X/ The function of this vlve version is siclly the sme s tht of the vlve with 3 switched positions. The 2 switched position vlves re however only fitted with solenoid "" (5). plug () is fitted in plce on the 2nd proptionl solenoid. Function: With the solenoids (5 nd 6), de-energised, the control spool (2) is held in the centrl position y the compression springs (3 nd 4) etween the spring pltes (X nd X2) Direct opertion of the control spool (2) y energising one of the proptionl solenoids, e.g. control of solenoid "" (6) Movement of the control spool (2) to the left in proption to the electricl input signl Connection from P to nd to T vi ifice-like crosssections with progressive flow chrcteristics De-energising of solenoids (6) The control spool (2) is returned to the centrl position vi the compression spring (3) In the de-energised condition the spool (2) is held in mechnicl centre position y the solenoid return springs. This, f the spool symol "V", does not relte to the hydrulic centre position! When the electricl vlve closed loop control circuit is closed then the spool is positioned in the hydrulic centre position. X X2 Drining of the tnk line is to e prevented. Tking the inslltion conditions into ccount ck pressure is to e fitted (ck pressure pprox. 2 r). X2

5 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 5/20 Technicl dt (f pplictions outside these prmeters, plese consult us!) Generl Nominl size NS 6 0 Instlltion optionl, preferly hizontl Stge temperture rnge C 20 to +80 mient 4WRE C 20 to +70 temperture rnge 4WREE C 20 to +50 Weight 4WRE kg WREE kg Hydrulic (mesured with HLP46, ϑ oil = 40 C ± 5 C nd p =00 r) Mx. operting pressure Pts,, P r 35 Pt T r 20 Nominl flow q V nom t p = 0 r l/min 8, 6, 32 25, 50, 75 Mx. permissile flow l/min Pressure fluid Minerl oil (HL, HLP) to DIN 5524 other pressure fluids on request! Pressure fluid temperture rnge C 20 to +80 (preferly +40 to +50) Viscosity rnge mm 2 /s 20 to 380 (preferly 30 to 46) Mx. permissile degree of pressure fluid contmintion. clss 20/8/5 ) Clenliness clss to ISO 4406 (c) Hysteresis % 0. Reversl spn % 0.05 Response sensitivity % 0.05 Zero point displcement with chnges to the %/0 K 0.5 pressure fluid temperture nd operting temperture %/00 r 0. ) The clenliness clss stted f the components must e dhered too in hydrulic systems. Effective filtrtion prevents fults from occurring nd t the sme time increses the component service life. F the selection of filters see ctlogue sheets RE 50070, RE 50076, RE 5008, RE nd RE

6 6/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Technicl dt (f pplictions outside these prmeters, plese consult us!) Electricl Nominl size NS 6 0 Voltge type Commnd vlue signl Voltge input V ±0 (see pge 8) f 4WREE Current input F m 4 is 20 (see pge 8) Solenoid coil Cold vlue t 20 C Ω resistnce Mx. wrm vlue Ω Duty % 00 Mx. coil temperture ) C 50 Electricl connections 4WRE with component plug DIN EN nd ISO 4400 see pges 7 nd 8 plug-in connect to DIN EN nd ISO ) Vlve protection to EN Control electronics F 4WRE 4/3 version 4WREE with component plug DIN EN ) Due to the occurring surfce temperture of the solenoid coils, the Europen Stndrds EN 563 nd EN 982 re to e tken into ccount! 2) Seprte der DC plug-in connect DIN EN ) IP65 with mounted nd fixed plug-in connect mplifier in digitl VT-VRPD-2-2X/V0/0 to RE 3026 Eurocrd fmt 2) nlogue VT-VRP2--X/V0 VT-VRP2-2-X/V0 to RE 309 to RE 309 Modulr mplifier 2) nlogue VT-MRP2- to RE 3029 F 4WRE 4/2 version Modulr mplifier 2) nlogue VT-MRP- to RE 3029 Note: VT-MRP2-2 to RE 3029 VT-MRP-2 to RE 3029 F 4WREE integrted in the vlve, see pge 9 nlogue commnd vlue module VT- SWM--X/... to RE nlogue commnd vlue module VT-SWMK--X/... to RE nlogue commnd vlue crd VT-SWK--X/... to RE Digitl commnd vlue crd VT-HCD --X/... to RE 3043 Supply voltge Nominl voltge VDC 24 Lower limiting vlue V 9.4 Upper limiting vlue V 35 mplifier power I mx < 2 consumption Impulse current 3 F detils regrding the environmentl simultion test covering EMC (electromgnetic comptiility), climte nd mechnicl loding see RE 2906-U (declrtion regrding environmentl comptiility).

7 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 7/20 Electricl connections, plug-in connects (nominl dimensions in mm) F type 4WRE (without integrted electronics) Connections on the component plug PE PE 2 Plug-in connect CECC F-H3D08-G to DIN EN nd ISO 4400 Solenoid, colour grey Seprte der under Mteril No. R Solenoid, colour lck Seprte der under Mteril No. R90070 Inductive position trnsducer Coil connections fixing screw M3 Tightening tque M = 0,5 Nm To the mplifier Coil Plug-in connect 4-pin Pg7-G4WF Seprte der under Mteril No. R Connection cle: Recommended: Up to 50 m cle length type LiYCY 4 x 0.25 mm 2 Only connect screen to PE on the supply side Connections on the plug-in connect 23 PE 2 To the mplifier 0 250V 7,8 27,5 2 GDM 43 0 Connection to the plug connect 37 PE 2 To the mplifier 34,2 5,5 Signl ground Supply ground Signl Supply To the mplifier Ø 5 Pg7

8 8/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Integrted electronics (OE) f type 4WREE (nominl dimensions in mm) F type 4WREE (with integrted electronics (OE) Plug-in connect to DIN EN Seprte der under Mteril No. R (plstic version) ngled fm seprte der under Mteril No. R Fo pin lloction lso see lock circuit digrm, pge 9 Ø27 Plug-in connect to DIN EN Seprte der under Mteril No. R (metl version) 9 85 Component plug lloction Contct Interfce signl Interfce F signl Supply voltge 24 VDC (u(t) = 9.4 to 35 V); I mx = 2 0 V Reference potentil ctul vlue C ref. contct F; R e > 50 kω ref. contct F; R e < 0 Ω Differentil mplifier input D ± 0 V commnd vlue; R e > 50 kω 4 to 20 m commnd vlue; R e > 00 Ω E reference potentionl commnd vlue Mesurement output (ctul vlue) F ± 0 V ctul vlue (limiting lod 5 m) PE Ø8 Ø3,5 Ø6,5 C D F E 4 to 20 m ctul vlue, lod resistnce mx. 300 Ω connected with cooling ody nd vlve housing Commnd vlue: positive commnd vlue 0 to +0 V ( 2 to 20 m) t D nd the reference potentil t E results in flow from P to nd to T. negtive commnd vlue 0 to 0 V ( 2 to 4 m) t D nd the reference potentil t E results in flow from P to nd to T. F vlve with solenoid on side (e.g. spool vrints E nd W) positive commnd vlue 0 to +0 V ( 4 to 20 m) t D nd the reference po ten ti l t E results in flow from P to nd to T. ctul vlue: ctul vlue 0 to +0 V resp. 2 to 20 m t F nd the reference potentil t C results in flow from P to nd to T, 0 to 0 V resp. 4 to 2 m results in flow from P to nd to T. F vlve with solenoid results 4 to 20 m t F nd the reference potentil t C results in flow from P to nd to T. Connection cle: Recommended: up to 25 m cle length type LiYCY 7 x 0.75 mm 2 up to 50 m cle length type LiYCY 7 x.0 mm 2 F outside dimeter see plug-in connect sketch Only connect screen to PE on the supply line.

9 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 9/20 Integrted electronics (OE) f type 4WREE lock circuit digrm / connection lloction Commnd vlue Interfce Integrted electronics (OE) Vlve Ref. po ten ti l ctul vlue Supply 24 V voltge GND Protective conduct ) Note: Ref. po ten ti l D E F C PE Differentil mplifier U U ctul vlue U U Under voltge recognition Power supply + Ui U 0 V U Ui Rmp genert 2) 3) Zero Sensitivity 2) F E D 0 F G P T E WREE 6 W-08-20/ G24K3/V Controller D Demodult C C = U I U I Oscillt = Zero point 3) ±0V/ m ctul position + 24V 0V Reference ctul position ±0V/ m signl input Reference input uild yer, uild week + country identifiction Position trnsducer Electricl signls processed y control electronics (e.g. ctul vlue) must not e used f switching off sfety relevnt mchine functions! (lso see the Europen Stndrd "Sfety requirements of fluid power systems nd components hydrulics, EN 982!) ) The protective conduct (PE) is connected to the cooling ody nd the vlve housing! 2) The rmp is externlly djustle from 0 to 2.5 s; the sme pplies f T up nd T down 3) Zero point is externlly djustle Mteril No. Internl mnufcturing der No. Interlock Symol Vlve type Consecutive vlve numer within the mnufcturing der

10 0/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Chrcteristic curves f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C) NS6 nd 0 Pressure-signl-chrcteristic curves (V spool), p s = 00 r NS6 p L in % p S Lekge flow in l/min Type 4WREE 6 V Lekge flow with the spool in the centrl position U E U EN in % Operting pressure in r p L in % p S Lekge flow in l/min 2 NS Type 4WREE 0 V75 U E U EN in % Operting pressure in r

11 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G /20 Chrcterisitc curves f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C nd p =00 r) NS6 8 l/min nominl flow t 0 r vlve pressure differentil Flow in l/min Flow in l/min Flow in l/min V spool E nd W spools Commnd vlue in % 6 l/min nominl flow t 0 r vlve pressure differentil V spool E nd W spools Commnd vlue in % 32 l/min nominl flow t 0 r vlve pressure differentil P / T P / T P / T P / T P / T P / T Commnd vlue in % p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt Mx. permissile fl ow Note: Tke the perfmnce limits on pge 5 into ccount! p = Vlve pressure differentil (inlet pressure p P minus lod pressure p L minus return pressure p T ) V spool E nd W spools p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt

12 2/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Chrteristic curves f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C nd p = 00 r) NS0 Flow in l/min Flow in l/min Flow in l/min V spool E nd W spools Commnd vlue in % V spool E nd W spools Commnd vlue in % l/min nominl flow t 0 r vlve pressure differentil P / T P / T 50 l/min nominl flow t 0 r vlve pressure differentil P / T P / T 75 l/min nominl flow t 0 r vlve pressure differentil P / T P / T Commnd vlue in % Mx. permissile fl ow Note: Tke the perfmnce limits on pge 5 into ccount! p = Vlve pressure differentil (inlet pressure p P minus lod pressure p L minus return pressure p T ) V spool E nd W spools p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt p = 0 r constnt 2 p = 20 r constnt 3 p = 30 r constnt 4 p = 50 r constnt 5 p = 00 r constnt

13 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 3/20 Trnsient function with stepped fm of electricl input signl f type 4WREE NS6 (mesured with HLP46, ϑ oil = 40 C ± 5 C nd p s =0 r) 4/3 vlve version Spool symol E Signl chnge in % Time in ms Frequency response chrcteristic curves f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C, p s = 0 r) NS6 4/3 vlve version Spool symol V mplitude reltionship in d Stroke in % Frequency in Hz Signl ± 0 % Signl ± 25 % Signl ± 00 % Phse ngle in

14 4/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Trnsient function with stepped fm of electricl input signl f type 4WREE NS0 (mesured with HLP46, ϑ oil = 40 C ± 5 C nd p s =0 r) 4/3 vlve version Spool symol E 4/3 vlve version Spool symol V mplitude reltionship in d Stroke in % Signl chnge in % Time in ms Frequency response chrcteristic curves f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C, p s = 0 r) NS Frequency in Hz Signl ± 0 % Signl ± 25 % Signl ± 00 % 80 Phse ngle in

15 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 5/20 Flow f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C) Lod function with mximum vlve opening Nominl flows 8, 6 nd 32 l/min Spool symol V Flow in l/min Vlve pressure differentil in r Tke the mximum permissile flow of 80 l/min into ccount! Flow f type 4WREE (mesured with HLP46, ϑ oil = 40 C ± 5 C) Lod function with mximum vlve opening Nominl flows 25, 50 nd 75 l/min Spool symol V Flow in l/min q Vmx = mx l/min l/min V Vlve pressure differentil in r Tke the mximum permissile flow of 80 l/min into ccount! 300 NS6 Mx. permissile flow P / T P / T NS0 Mx. permissile flow P / T P / T

16 6/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Unit dimensions: type 4WRE 6 (nominl dimensions in mm) , F F4 42 P Vlve housing 2 Proptionl solenoid "" with inductive position trnsducer 3 Proptionl solenoid "" 4 Plug-in connect "", colour grey, seprte der see pge 7 5 Plug-in connect "", colour lck, seprte der see pge 7 6 Plug-in connect f inductive position trnsducer, seprte der see pge 7 7 Plug f vlves with one solenoid (2 switching positions, versions E W) 8 Identicl sel rings f pts,, P nd T 9 Spce required to remove the plug-in connect 0 Nme plte Mchined vlve mounting surfce, connection loction to ISO 440 (with locting pin hole) Code: (explntion to ISO 5783) Devition from the stndrd: - without locting pin hole G - pts P,, nd T mit Ø8 mm ,5 T G (23) 8 F2 F3 7 Tolernces to: 0,0/00mm Rzmx 4 44 Required surfce finish of the vlve mounting surfce Generl tolernces ISO 2768-mK Supltes to ctlogue sheet RE nd vlve fixing screws must e dered seprtely. Supltes: G34/0 (G/4) G342/0 (G3/8) G502/0 (G/2) Vlve fixing screws (seprte der) The following vlve fixing screws re recommended: 4 S.H.C.S. ISO M5 x flZn-240h-L (friction vlue µ totl = 0.09 to 0.4) Tightening tque M = 7 Nm ± 0% Mteril No. R (seprte der) 4 S.H.C.S. ISO M5 x (friction vlue µ totl = 0.2 to 0.7) Tightening tque M = 8.9 Nm ± 0% NS6 85,5 5

17 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 7/20 Unit dimensions: type 4WREE 6 (nominl dimensions in mm) Vlve housing , F4 42 P T P 2 Proptionl solenoid "" with inductive position trnsducer 3 Proptionl solenoid "" 7 Plug f vlves with one solenoid (2 switching positions, versions E W) 8 Identicl sel rings f pts,, P nd T 0 Nme plte Mchined vlve mounting surfce, connection loction to ISO 440 (with locting pin hole) Code: (explntion to ISO 5783) Devition from the stndrd: - without locting pin hole G - pts P,, nd T mit Ø8 mm 2 Integrted electronics (OE) 3 Plug-in connect, seprte der see pge 8 F T G (23) F2 F3 8,5 7 3 Tolernces to: 44 0,0/00mm Rzmx 4 23 Required surfce finish of the vlve mounting surfce 47 Supltes to ctlogue sheet RE nd vlve fixing screws must e dered seprtely. Supltes: G34/0 (G/4) G342/0 (G3/8) G502/0 (G/2) Vlve fixing screws (seprte der) The following vlve fixing screws re recommended: 4 S.H.C.S. ISO M5 x flZn-240h-L (friction vlue µ totl = 0.09 to 0.4) Tightening tque M = 7 Nm ± 0% Mteril No. R (seprte der) 4 S.H.C.S. ISO M5 x (friction vlue µ totl = 0.2 to 0.7) Tightening tque M = 8.9 Nm ± 0% NS6 3,5 Generl tolernces ISO 2768-mK

18 8/20 osch Rexroth G Hydrulics 4WRE; 4WREE RE 2906/0.05 Unit dimensions: type 4WRE 0 (nominl dimensions in mm) 6 Vlve housing 2 84, ,5 3 32,5±0,2 F T F P 92 50,8±0,2 2 Proptionl solenoid "" with inductive position trnsducer 3 Proptionl solenoid "" Plug-in connect "", colour grey, seprte der see pge 7 5 Plug-in connect "", colour lck, seprte der see pge 7 6 Plug-in connect f position trnsducer, seprte der see pge 7 7 Plug f vlves with one solenoid (2 switching positions, versions E W) 8 Identicl sel rings f pts,, P, T nd T 9 Spce required to remove the plug-in connect 0 Nme plte Mchined vlve mounting surfce, connection loction to ISO 440 (with locting pin hole) Code: (explntion to ISO 5783) Devition from the stndrd: Pt T Ø.2 mm 2 (80,5) 8 F2 T F3 5 7 Tolernces to: ,5 3,5 5 0,0/00mm Rzmx 4 Required surfce finish of the vlve mounting surfce Supltes to ctlogue sheet RE nd vlve fixing screws must e dered seprtely. Supltes: G66/0 (G3/8) G67/0 (G/2) G534/0 (G3/4) Vlve fixing screws (seprte der) The following vlve fixing screws re recommended: 4 S.C.H.S. ISO M6 x flZn-240h-L (friction vlue µ totl = 0.09 to 0.4) Tightening tque M = 2.5 Nm ± 0%, Mteril No. R (seprte der) 4 S.C.H.S. ISO M6 x (friction vlue µ totl = 0.2 to 0.7) Tightening tque M = 5,5 Nm ± 0% 70 Generl tolernces ISO 2768-mK NS0

19 RE 2906/0.05 4WRE; 4WREE Hydrulics osch Rexroth G 9/20 Unit dimensions: type 4WREE 0 (nominl dimensions in mm) 3 Vlve housing ,5 269, ,5±0,2 9 T F T F P P 50,8±0,2 2 Proptionl solenoid "" with inductive position trnsducer 3 Proptionl solenoid "" 94 (80,5) 7 Plug f vlves with one solenoid (2 switching positions, versions E W) 8 Identicl sel rings f pts,, P, T nd T 0 Nme plte Mchined vlve mounting surfce, connection loction to ISO 440 (with locting pin hole) Code: (explntion to ISO 5783) Devition from the stndrd: Pt T Ø.2 mm 2 Integrted electronics (OE) 3 Plug-in connect, seprte der see pge 8 8 T F2 T F Tolernces to: 40 Ø64 72,5 39 0,0/00mm Rzmx 4 70 Required surfce finish of the vlve mounting surfce Generl tolernces ISO 2768-mK Supltes to ctlogue sheet RE nd vlve fixing screws must e dered seprtely. Supltes: G66/0 (G3/8) G67/0 (G/2) G534/0 (G3/4) Vlve fixing screws (seprte der) The following vlve fixing screws re recommended: 4 S.C.H.S. ISO M6 x flZn-240h-L (friction vlue µ totl = 0.09 to 0.4) Tightening tque M = 2.5 Nm ± 0%, Mteril No. R (seprte der) 4 S.C.H.S. ISO M6 x (friction vlue µ totl = 0.2 to 0.7) Tightening tque M = 5,5 Nm ± 0% NS0

20 20/20 osch Rexroth G Hydrulics 4WRE; 4 WREE RE 2906/0.05 Notes osch Rexroth G Hydrulics Zum Eisengießer 9786 Lohr m Min, Germny Telefon +49 (0) / 8-0 Telefx +49 (0) / documenttion@oschrexroth.de This document, s well s the dt, specifictions nd other infmtions set fth in it, re the exclusive property of osch Rexroth G. Without their consent it my not e reproduced given to third prties. The dt specified ove only serves to descrie the product. No sttements concerning certin condition suitility f certin ppliction cn e derived from our infmtion. The detils stted do not relese you from the responsiility f crrying out your own ssessment nd verifiction. It must e rememered tht our products re suject to nturl process of wer nd geing.